Firebase通知白圈问题

Question

我有一个问题Firebase Notification，如果我在应用程序在屏幕上运行时发送通知，则通知会正确显示，如下所示：

比起当我在后台运行应用程序时发送通知，通知显示如下：

这是我的FirebaseMessagingService课

    public class AppFirebaseMessagingService extends FirebaseMessagingService {

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        sendNotification(remoteMessage);
    }

    private void sendNotification(RemoteMessage remoteMessage) {
        Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        int icon = Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP ? R.drawable.ic_video_label_white_24dp: R.drawable.ic_launcher;
        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this);
        notificationBuilder.setWhen(System.currentTimeMillis());
        notificationBuilder.setColor(ContextCompat.getColor(this, R.color.colorPrimary));
        notificationBuilder.setSmallIcon(icon);
        notificationBuilder.setContentTitle(remoteMessage.getNotification().getTitle());
        notificationBuilder.setContentText(remoteMessage.getNotification().getBody());
        notificationBuilder.setAutoCancel(true);
        notificationBuilder.setSound(defaultSoundUri);
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            Intent resultIntent = new Intent(this, MainActivity.class);
            TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
            stackBuilder.addParentStack(MainActivity.class);
            stackBuilder.addNextIntent(resultIntent);
            PendingIntent pendingIntent = stackBuilder.getPendingIntent(0,PendingIntent.FLAG_UPDATE_CURRENT);
            notificationBuilder.setContentIntent(pendingIntent);
            notificationBuilder.setPriority(Notification.PRIORITY_HIGH);
        }

        NotificationManager notificationManager =
                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(0, notificationBuilder.build());
    }
}

为什么会这样？

Answer 1

这是 Firebase 中的错误，尚未解决。链接在这里：https ://stackoverflow.com/a/37332514/1507602

另一种选择是不使用 Firebase 控制台发送通知，而是使用 POST API，这样您的通知将直接发送到onMessageReceived()您可以创建自己的通知的位置。

要发送数据有效负载消息，您必须发出curl 请求：

HTTP POST 请求

https://fcm.googleapis.com/fcm/send
Content-Type:application/json
Authorization:key=AIzaSyZ-1u...0GBYzPu7Udno5aA

{ "data": {
    "score": "5x1",
    "time": "15:10"
  },
  "to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1..."
}

您可以从 firebase 控制台获取服务器密钥 (AIzaSyZ-1u...0GBYzPu7Udno5aA)：您的项目 -> 设置 -> 项目设置 -> 云消息传递 -> 服务器密钥